What is the weather like in Cayo Coco vs San Juan in December?

In December, Cayo Coco averages 28°C high / 22°C low with about 37 mm of rain; San Juan averages 30°C high / 23°C low with about 80 mm.

Cayo Coco vs San Juan in December

Cayo Coco is the better pick in December — 88 vs 73 on SeasonMap's comfort score. Cayo Coco is hot, a little rain, clean air, while San Juan is hot, a little rain, clean air.

Cayo Coco vs San Juan — December climate, side by side

	🇨🇺 Cayo Coco	🇵🇷 San Juan
Comfort score	88/100 (A)	73/100 (B)
Feels-like high	29°C	32°C
Avg high / low	28° / 22°	30° / 23°
Rainfall	37 mm	80 mm
Rainy days	9	12
Humidity	76%	82%
Air quality (AQI)	39	32

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

Cayo Coco vs San Juan in December — FAQ

Is December better in Cayo Coco or San Juan?: Cayo Coco is the better pick in December — 88 vs 73 on SeasonMap's comfort score. Cayo Coco is hot, a little rain, clean air, while San Juan is hot, a little rain, clean air.
What is the weather like in Cayo Coco vs San Juan in December?: In December, Cayo Coco averages 28°C high / 22°C low with about 37 mm of rain; San Juan averages 30°C high / 23°C low with about 80 mm.